Multiple punch.



PATENTED JULY 80, 1907.

J. L. BROWER.

' MULTIPLE PUNCH. APPLICATION FILED MR5. 1906.

8 SHEETS-SHEET 1.

Svwemloz wit" eases atmwu PATENTED JULY 30, 1907.

J. L. BROWER.

MULTIPLE PUNCH.

APPLICATION FILED NOV. 5. 1900.

3 SHEETS-SHEET 2.

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PATENTED JULYQSO, 1907.

J. L. BROWBR.

MULTIPLE PUNCH.

APPLICATION rum) NOV. a; 1906.

3 SHEETS-SHEET 3n muemtozakto'oneq 1-H: Moguls rltrzks co.. vusnmcmnl, a C4 JOHN L. BROWER, OF PHILADELPHIA, PENNSYLVANIA.

MULTIPLE PUNCH.

Specification of Letters Patent.

Patented July 30', 1907.

Application filed November 5, 1906. Serial No. 342,072.

To all whom it may concern:

Be it known that I, JOHN L. BROWER, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Multiple Punches, of which the following is a specification.

My invention relates to multiple punches, and belongs more especially to that class of machines designed to punch any arrangement of holes in plates and iron, steel or other metal of different shapes used in bridge and structural work.

The objects of my invention are: First, to construct a simple and efficient multiple punch in which a single or any combination and arrangement of a plurality of punches can be brought into operative position with the least amount of skill or manual labor and all the desired punches made to operate at a single stroke of the machine. Second, to construct a multiple punch so that all the gags operating the punches are moved in one and the same direction and can be operated by a single operator from the same point. Third, to construct a punch in which all the gags can be operated from one side or front of the machine and the friction between the gags and the containing casting is avoided or reduced to a minimum. Fourth, to construct a multiple punch in which the gags controlling the punches are superposed and compact in form, and arranged so that a single gag may control one or more punches. Fifth, to arrange and construct the gags controlling the punchesso that they are firmly held in place and mutually cooperate to resist displacement when put under strain during the punching operations. Sixth, to construct a multiple punch in which springs or levers are avoided which usually interfere with the movements of the operators and rapidity of operating center of the head 1, adapted to receive and guide, respectively, the punch stocks 3, 4, 5 and 6, each of i Which at its end has a suitable punch 8.

a punching machine. Seventh, to so construct amultiple punch as to avoid the use of operating rods passing through the castings or forgings forming the punch-.

ing machine. Eighth, to construct and arrange the parts of a multiple punch so as to secure the highest efficiency of operation with the minimum cost of manufacture. Ninth, other evident advantages of the specific construction and arrangement of the parts which will hereinafter appear from the detailed description of the machine and the manner of operating the same.

My invention consists of structural features and relative arrangements of elements, which will be hereinafter more fully and clearly described and pointed out in the appended claims.

Referring to the three sheets of drawings, in which similar reference characters indicate the same parts in the several figures,Figure 1 is a top plan view ofthe invention when four punches are used. Fig. 2 is a front view'of thefour punch type. Fig. 3 is a-' side view of Fig. 2. Fig. 4 is a top plan view of the invention with eight punches. Fig. 5 is a front view of Fig. 4. Fig. 6 is a top plan view of the invention with fourteen punches. Fig. 7 is a front view of Fig. 6; and Fig. 8 is any suitable form of base block correspondingly changed for the different types of above referred to punches.

Referring to Figs. 1, 2 and 3, 1 is a forged or cast supporting frame or head provided with cut or cored out portions which are adapted to suitably contain and slidably support the gags controlling the punches to be presently described.

2, 2, are bolt openings adapted to receive bolts for the purpose of rigidly securing the supporting frame or head 1 to the reciprocating element of the punching machine whose construction and operation are fully understood and need no further description or illustration.

3 and 4 are lower gags seated and sliding in suitable channels or ways within the frame or head 1, while 5 and 6 are similar but longer gags above the gags 3 and 4 and resting on the ledges 7 and 8 as indicated, so that there is a clearance between the superposed gags 3, 4, and 5 6 and each gag can be operated independently of any of the others and without undue friction.

Each of the four gags is provided with a handle 9 adapted to be gripped by the operator in order to slide tion of the gag.

12, 13, 14 and 15 are vertical circular openings in the The gags are preferably made rectangular in cross section, the lower gags 3 and 4 being of such a length so that when they I are in their innermost position they will only cover the openings 12 and 13 and prevent the punch stocks 3 and 4 from passing completely into the frame orhead 1 as indicated in Fig. 3. The upper gags 5 and 6 are of a greater length than gags 3 and 4 and when adjusted to their innermost position prevent the punch stocks 5 and 6 from passing entirely through their openings and consequently the punches at their ends-will ,be held in a fixed position and made to punch the ma" terial held upon the base block as readily understood.

5 It will also be seen that when the upper gags 5 and 6 are pulled out and the gags 3 and 4 are pushed in and the machine operated, the upper ends of the punch stocks 3 and 4 will abut-against the gags 3 and 4 which gags in turn will bear against the superposed gags 5 and 6 and form an unyielding surface to force the punches on stocks 3 and 4 through the metal resting on the base block.

The punch stocks, as will be seen by reference to Fig. 3, are made of different lengths, punch stocks 3 and 4 being of the same length and shorter than the length of stocks 5 and 6, said difference of length being equal to the thickness of the gags 3 and 4 or depth to which the punches 8, 8, are forced into the metal. From this it will be seen that whenever a gag is withdrawn from the head 1, the punch stock and punch simply pass into the head a distance equal to the thickness of the gag and become inoperative for punching.

Each of the punch stocks is provided at the upper end next to the gags with an enlargement 20, adapted to engage a shoulder 21in the punch stock opening and prevent the same from dropping out of its opening or guide-way when raised or lifted out from the punched material after having been operated upon. 22 is a pin on each of the punch stocks which engages a corresponding slot or key-Way on the side of each of the vertical punch stock openings or guides and prevents the stocks or punches from having a rotary movement.

Referring to Figs. 4 and 5, it will be seen that the general construction of frame or head and gags with attachments is substantially the same and not thought necessary to be again described in detail, but instead of four punches being shown there are provided eight punches attached to the lower ends of the punch stocks 23, 24, 25, 26, 27, 28, 29 and 30 controlled, respectively, by the gags 23 24 25 26 27 23 29 and 30 which are arranged three superposed tiers, the upper and lower tiers having three gags while'the middle one has two gags. I

Referring to Figs. (Sand 7, it will be seen thatfourteen punches are operated by the punch stocks 31, 32, 33, 34, 35, 36, 37, 33, 39, 40, 41, 42, 43 and 44, which are controlled by the eleven gags 31 32, 33, 34, 35, 36, 37, 38, 39, 40 and 41, also arranged in three superposed tiers, the middle and lower tiers having each four gags while the upper has three. Gags 31, 32, 33, 34, 35, 36, 37 and 38 control, respectively, the punch stocks 31, 32, 33, 34, 35, 36, 37 and 33, while the gag 39 controls punch stocks 39 and 42 gag 40 controls punch stocks 40 and 43, and gag 41 controls punch stocks 41 and 44 with their punches.

The operation of the invention is as follows: Referring to Figs. 1, 2 and 3, if it is desired to punch a plate with all four openings corresponding to the punches on the ends of the four stocks 3, 4, 5 and 6, all the gags 3, 4, 5 and 6 are pushed in to their limit as shown, when the said stocks are prevented from passing entirely through their openings or guideways and all the punches will consequently be forced through the metal to be punched. Should any of the gags be withdrawn their corresponding openings or guideways will be unobstructed and permit the punch stocks to pass freely through them when their punch ends are forced against the metal and meeting with no resistance or reaction against an abutment, the punches will fail to pass into the metal.

The operation of the forms shown in Figs. 4, 5, 6 and 7 are substantially the same as explained above, and all that is necessary is when certain punches are to be made operative is to see that the gags controlling the desired punches are thrust entirely within the supporting frame or head, while the gags corresponding to the punches not to be operative are withdrawn, as explained in the detailed description.

From the foregoing detailed description and mode of operating the invention it will be clearly seen that I have devised a punching machine in which one person can easily and quickly control many punches and in any desired combinations. Furthermore, it will also be seen that I have perfected a machine in which all the objects set out in the statement of invention are fully attained and efficiently carried out.

Various changes may be made in the details of my frame or head or in the number and specific arrangement of punch stocks and controlling gags; and while I have in the foregoing specification described and shown in the drawings punching machines adapted for four, eight, or fourteen punches, yet it will be obvious to those skilled in the art that the number of punches and the arrangement of the superposed gags may be varied or means for controlling the same be modified in many ways without changing the operation of the machine or departing from my invention.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent,

is as follows 1. A multiple punch comprising a reciprocating support- 3 ing frameor head having a plurality of rows of openings each of which is adapted to receive and guide a punch stock, a movable punch stock in each of said openings, a punch on the outer end of each stock, a plurality of superposed and adjustable gags supported in said frame or head and operated from the same side of the frame and adapted to cover or uncover any one of the openings and control the movement of the punch stocks through the supporting frame or head, said gags being normally separated but adapted to contact when resisting the pressure of the punch.

2. A multiple punch comprising a reciprocating supporting frame or head having a plurality of rows of openings each of which is adapted to receive and guide a punch stock, a movable punch stock in each of said openings, a

punch on the outer end of each stock, a plurality of super-.

posed and adjustable gags of different lengths supported in juxtaposition in said frame or head and operated from the same side of the frame and adapted to cover or uncover any one of the openings and control the movement of the punch stocks through the supporting frame or head, said gags being normally separated but adapted to contact when resisting the pressure of the punch.

3. A multiple punch comprising a reciprocating supporting frame or head having a plurality of rows of openings each of which is adapted to receive and guide a punch stock, a movable punch stock in each of said openings, a punch on the outer end of each stock, a plurality of superposed and adjustable gags supported in said frame or head and operated from the same side of the frame .and adapted to control any combination of the openings and movement of the punch stocks through the supporting frame or head, said gags being normally separated but adapted to contact when resisting the pressure of the punch.

4. A multiple punch comprising a reciprocating supporting frame having a plurality of rows of vertical openings each of which is adapted to receive and guide a punch stock, a movable punch stock in each of said openings, a punch on the outer end of each stock, a plurality of adjustable gags horizontally supported and arranged in tiers in said frame or head and operated from the same side of the frame and adapted to control any combination of the openings and movement of the punch stocks through the supporting frame or head, said gags being normally separated but adapted to contact when resisting the pressure of the punch.

5. A multiple punch comprising a reciprocating supporting frame or head having a plurality of rows of openings each of which is adapted .to receive and guide a punch stock, a movable punch stock in each of said openings, a punch on the outer end of each stock, a plurality of superposed gags supported in said frame or head and operated from the said side of the frame and adapted to control any combination of the openings and movement of the punch stocks through the supporting frame or head, and stops for controlling the movement of the gags, said gags being normally separated but adapted to contact when resisting the pressure of the punch.

6. A multiple punch comprising a reciprocating supporting frame or head having' a plurality of rows of openings each of which is adapted to receive and guide a punch stock, a movable punch stock in each of said openings, a punch on the outer end of each stock, a plurality of superposed and adjustable gags supported in said frame or head and operated from the same side of the frame and adapted to control any combination of the openings and movement of the punch stocks through the supporting frame or head, and a bolt passing loosely through a slot in the end of the gags and acting as a stop for the adjusted positions of the gags, said gags being normally separated but adapted to contact when resisting the pressure of the punch.

7. A multiple punch comprising a reciprocating support ing frame or head having a plurality of vertical openings arranged in rows at a right angle to each other each of which openings isadapted to receive and guide a punch stock, a movable punch stock in each of said openings, a punch on the outer end of each stock, a plurality of superposed and adjustable gags of different lengths supported in said frame or head and operated from the same side of the frame and adapted to cover or uncover any one of the openings and control the movement of the punch stocks through the supporting frame or head, said gags being normally separated but adapted to contact when resisting the pres sure of the punch.

8. A multiple punch comprising a reciprocating supporting frame or head having a plurality of vertical openings arranged in rows at right angles to each other each of which openings is adapted to receive and guide a punch stock, a movable punch stock in each of said openings, a punch on the outer end of each stock, a plurality of superposed gags of different lengths supported in said frame or head and operated from the same side of the frame and ad justable in one direction and adapted to control any combi nation of the openings and movement of the punch stocks through the supporting frame or head, said gags being normally separated but adapted to contact when resisting the pressure of the punch.

In testimony whereof I afiiX my signature in presence of two witnesses.

JOHN L. BROWER.

Witnesses: Ron'r. S. S'rnADnR, WALLIs S. MITCHELL. 

